package main

import "fmt"

type student struct {
    id   int
    name string
    age  int
}

func main() {
    ce := make(map[int]student)
    ce[1] = student{1, "xiaolizi", 22}
    ce[2] = student{2, "wang", 23}
    fmt.Println(ce)
    delete(ce, 2)
    fmt.Println(ce)
}

